First, because everyone is very self-centered, they all like to regard their hobbies as the best and most unique in the world. what is the purpose? I just want to stand out from others. In fact, this is a disguised self-display.
Second, the more so, the more self-abased this person is. Don't say you don't like this kind of person. All normal people are particularly disgusted with this kind of person. Emotional intelligence is too low!